Each color-coded Theraputty package contains a latex-free putty of progressive consistency ranging from xx-soft to x-firm. The material is designed as a tool for increasing strength in hands, fingers and wrists at a steady, gradual pace. Theraputty is easy to use – ideal for rehab following carpal tunnel surgery or to develop a stronger grip after illness. What's more, Theraputty can be heated in a microwave for more sensory stimulation and comfort. The putty material is made of supple silicone-based material and comes in convenient, easy-to-open reusable plastic containers of 2 oz., 3 oz., 4 oz. and 6 oz. sizes for individuals or 1 lb. and 5 lb. containers for hospital or clinic use. Theraputty is gluten-, latex- and casein-free. For the price and versatility, there isn't a more effective product like it on the market today.